EP0357388A3 - Image encoding method - Google Patents

Image encoding method Download PDF

Info

Publication number
EP0357388A3
EP0357388A3 EP19890308749 EP89308749A EP0357388A3 EP 0357388 A3 EP0357388 A3 EP 0357388A3 EP 19890308749 EP19890308749 EP 19890308749 EP 89308749 A EP89308749 A EP 89308749A EP 0357388 A3 EP0357388 A3 EP 0357388A3
Authority
EP
European Patent Office
Prior art keywords
pixel
encoding method
image encoding
interest
predicted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19890308749
Other languages
German (de)
French (fr)
Other versions
EP0357388B1 (en
EP0357388A2 (en
Inventor
Shigeo Kato
Yasuhiko Yasuda
Hidefumi Ohsawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP21721888A external-priority patent/JP2651210B2/en
Priority claimed from JP21721788A external-priority patent/JP2651209B2/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP0357388A2 publication Critical patent/EP0357388A2/en
Publication of EP0357388A3 publication Critical patent/EP0357388A3/en
Application granted granted Critical
Publication of EP0357388B1 publication Critical patent/EP0357388B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
    • H04N1/4172—Progressive encoding, i.e. by decomposition into high and low resolution components

Abstract

In an image encoding method in which a pixel of interest is predicted with reference to a plurality of pixels near the pixel of interest to be encoded, and encoding is performed on the basis of coincidence/noncoincidence between the predicted pixel and the pixel of interest, a parameter for predicting a pixel is changed on the basis of a rate of coincidence/noncoincidence of the predicted pixel and the pixel of interest.
EP89308749A 1988-08-30 1989-08-30 Image encoding method Expired - Lifetime EP0357388B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP21721888A JP2651210B2 (en) 1988-08-30 1988-08-30 Image coding method
JP217217/88 1988-08-30
JP21721788A JP2651209B2 (en) 1988-08-30 1988-08-30 Image encoding method and apparatus
JP217218/88 1988-08-30

Publications (3)

Publication Number Publication Date
EP0357388A2 EP0357388A2 (en) 1990-03-07
EP0357388A3 true EP0357388A3 (en) 1991-11-06
EP0357388B1 EP0357388B1 (en) 1997-10-22

Family

ID=26521894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89308749A Expired - Lifetime EP0357388B1 (en) 1988-08-30 1989-08-30 Image encoding method

Country Status (2)

Country Link
EP (1) EP0357388B1 (en)
DE (1) DE68928397T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02177766A (en) * 1988-12-28 1990-07-10 Canon Inc Hierarchical encoding system for binary image
EP0597698B1 (en) * 1992-11-13 1998-08-05 Canon Kabushiki Kaisha Image processing apparatus and method therefore
EP1689189A3 (en) 1996-11-07 2008-12-10 Panasonic Corporation Image encoder and image decoder
FR2838258B1 (en) * 2002-04-04 2004-06-04 Tak Asic METHOD FOR CODING DIGITAL IMAGES USING A SPECIFIC CODE TO SHORTEN CODING TIME
CN111814468B (en) * 2020-07-09 2021-02-26 前海企保科技（深圳）有限公司 Self-adaptive architecture semantic distribution text understanding method and system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813485A (en) * 1972-01-05 1974-05-28 Ibm System for compression of digital data
US4724483A (en) * 1985-10-25 1988-02-09 Fuji Photo Film Co., Ltd. Information compressing method and apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813485A (en) * 1972-01-05 1974-05-28 Ibm System for compression of digital data
US4724483A (en) * 1985-10-25 1988-02-09 Fuji Photo Film Co., Ltd. Information compressing method and apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IBM JOURNAL OF RESEARCH AND DEVELOPMENT, vol. 18, no. 2, March 1974, pages 164-171, New York, US; H. KOBASHI: "Image data compression by predictive coding I: Prediction algorithms" *
IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 29, no. 6, June 1981, pages 868-867, New York, US; G.G. LANGDON, Jr. et al.: "Compression of black-white images with arithmetic coding" *

Also Published As

Publication number Publication date
EP0357388B1 (en) 1997-10-22
DE68928397D1 (en) 1997-11-27
EP0357388A2 (en) 1990-03-07
DE68928397T2 (en) 1998-03-19

Similar Documents

Publication Publication Date Title
EP0341701A3 (en) Image processing method
ZA892765B (en) Method and system for compressing color video feature encoded data
EP0818930A3 (en) Video coding method
WO1999038314A3 (en) Apparatus and method for using side information to improve a coding system
EP0616448A3 (en) Computer conferencing method.
EP0651346A3 (en) Forms recognition management system and method.
EP0615345A3 (en) Method and system for data compression.
EP0411232A3 (en) Method for high-quality compression by binary text images
EP0606629A3 (en) Method and system for compressing video data.
CA2096397A1 (en) Adaptive Coding Level Control for Video Compression Systems
ZA892766B (en) Method and system for compressing and decompressing digital color video statistically encoded data
EP0620686A3 (en) Fuzzy-controlled coding method and apparatus therefor.
EP0775982A3 (en) System and method for merging pixel fragments based on depth range values
EP0369689A3 (en) Vector quantizer for images
AU7101794A (en) Method and apparatus for video signal encoding, decoding and monitoring
GR3030693T3 (en) System and method for varying the transmission rate of facsimile data in a telecommunication system.
EP0859517A3 (en) Video coder employing pixel transposition
EP0838953A3 (en) Image signal padding method for coding/decoding purposes
EP0806871A3 (en) Method and apparatus for generating chrominance shape information of a video object plane in a video signal
EP0597649A3 (en) High efficiency coding method and apparatus.
EP0633699A3 (en) Forced intra-frame coding method.
CA2163558A1 (en) A Method for Determining Whether to Intra Code a Video Block
EP0734167A3 (en) Apparatus for encoding/decoding an image signal having a still object
EP0660089A3 (en) Sensor interface method and apparatus.
EP0818929A3 (en) Method and apparatus for encoding a contour image in a video signal

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19901231

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 19930615

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REF Corresponds to:

Ref document number: 68928397

Country of ref document: DE

Date of ref document: 19971127

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070831

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070813

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070820

Year of fee payment: 19

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080830

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090303

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080830